Leila is riding her bicycle. she rides 51.2 kilometers in 4 hours. what is her speed?

Sasha drank 8 bottles of water everyday for a week. how many bottles of water did she drink in total?

50 will mark show all use the linear combination method to solve the system of equations. explain each step of your solution. if steps are not explained, you will not receive credit for that step. 2x+9y= -26 -3x-7y=13

What is the geometric mean of 3 and 7? a) square root of 21 b) 2 square root of 6 c) 2 square root of 7 d) 21